Hoop or band for cylindrical casings.



I PATENTED Nov. 3, 1903. I. B. HAMMOND. HOOP 0R BAND FOR GYLINDRIGAL GASINGS.

APPLICATION FILED SEPT. 12 1902.

N0 MODEL.

5 m f3. daw

PatentedNovember 3, 1903.

PATENT OFFICE.

ISAAC B. HAMMOND, OF PORTLAND, OREGON.

HOOP OR BAND FOR CYLIVNDRICAL CAVSINGS.

SPECIFICATION forming part of Letters Patent No. 743,075, dated November 3, 1903.

Application filed $eptember 12,1902. Serial No.123,198. (N0 model.)

To aZZ whom it may concern:

Be it known that I, ISAAC B. HAMMOND, a citizen of the United States, and a resident of Portland, in the county of Multnomah and State of Oregon, have invented a new and useful Improvement in Hoops or Bands for Cylindrical Casings, of which the following is a specification, reference being had to the ac companying drawings as a part thereof. 7

My invention relates particularly to a hoop or band for wooden stovepipe, but may also be advantageously applied to vats and other contrivances.

It has for its object to obtain an improved, simplified, and efiective hoop comprising a band of metal, the ends of which are formed into loops to be united by a link or coupler and tightly drawn together by means of wedges driven between the engaging extremities of such band and coupler with the effect of contracting the band around the casing and bending the staves together with great force.

My invention is inexpensive to make. The construction thereof is as illustrated inthe drawings above referred to, in which Figure 1 is a perspective showing a section of wooden pipe-casing, the staves of which are bound together by my improved hoop. Fig. 2 is a partial plan section of the pipecasing taken above my hoop and shows the looped ends of the latter, the coupler or link uniting the same, and the Wedges. Fig. 3 is a partial vertical section on a line G h of Fig. 2. Fig. 4 is a perspective elevation of the coupler or link d.

The letters designate the parts referred to in the description of my invention.

The two advantages gained by my improved hoop are its cheapness of construction and its effective use.

The hoop consists of a band of metal I), the two ends 0 c of which are bent back, so as to constitute loops. These'looped ends are united by a link or coupler d, which is made of a plate of metal, the inside portion of which is cut out, and the two endse c are so shaped that when bent forward at slightly oblique angles, as shown, the openingin such ends will be in the same horizontal plane as the continuation of such opening through the middle portion of such coupler. The coupler is placed over the looped ends 0 c of the band,

the width of the opening in the coupler being slightly in excess of that of the band. The looped ends a c extend through the coupler ends e e, the latter providing inclined shoulders for the tapered edges of the wedges to bear against. The looped ends 0 c are bent parallel with the body of the band and readily inserted through the openings in the shoulders e e. The shoulders formed at the bend of the loops provide the straight bearing-surface for the straight edges of the wedges or locking-pins ff. The incline of the shoulders e e is made to correspond-with the taper of such wedges.

When my hoop is applied, the band bis placed on the casing as usual. Next the coup lerd is placed over the ends 0 c, asillustrated, the middle portion of the coupler lying in the same vertical plane as the band, and therefore directly against the casing, and lastly the wedges or locking-pins are inserted with their tapering edges against the shoulders e 6'. By now driving in the wedges the hoop is contracted with great force.

Having described my invention, I claim and desire to secure by Letters Patent- 1. A hoop comprising a band I), made with bent-over or looped ends 0, c; a link-coupler (1, made with bent ends or shoulders e, e, and adapted tobe inserted over said looped ends; and wedges or locking-pins f, f; said shoulders c, e, being adapted to constitute an inclined bearing for the tapering edges of the locking-pins, substantially as described.

2. A hoop comprising a band I), made with bent-over or looped ends 0, c, in combination with a link-coupler d, made with bent ends or shoulders e, e, and adapted to be inserted over said looped ends; and wedges or lookingpins f, f; said shoulders e, e, being adapted to constitute an inclined bearing for the tapering edges of the locking-pins, substantially as described.

In testimony whereof I have hereunto affixed my signature, in the presence of two witnesses, this 6th day of August, 1901.

ISAAC B. HAMMOND.

Witnesses:

F. POWELL, T. J. GEISLER. 

